Transmission system

Details Transmission system Transmission system

1987-12-16

1989-04-11

Griffin, Robert L.

Multiplex communications

Wide area network

Packet switching

3701104, 375 67, 381 2, H04J 300, H04L 2720

Patent

active

048212601

ABSTRACT:
A system for transmitting and receiving digitalized audio signals, particularly via satellites, wherein data sequences are arranged in timely succession within frames, wherein before transmission, the digitalized audio signal is converted to a digital signal representing the momentary frequency spectrum and, during subsequent coding of the digital audio signal to be transmitted, portions of this transformed signal are given different weights on the basis of psychoacoustic laws with respect to the accuracy of their representation.

REFERENCES:
patent: 4554658 (1985-11-01), Marte et al.
patent: 4750167 (1988-06-01), Meyer
"An Introduction to Error-Correcting Codes", Shu Lin, Prentice-Hall, Inc., Englewood Cliffs, N.J., pp. 130-135.
"Digital Sound Service for Direct Broadcasting Satellites", The Federal Minister of Research and Technology, pp. 76-79 and 106-108.

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